For trimming end grain, a mitre trimmer (such as this -
http://www.axminster.co.uk/axcaliber-mt1-mitre-trimmer ) would be another option. This one isn't as posh as those from Morso or Ortoguil, and is strictly speaking intended for trimming picture frame mitres, so will not have quite the length capacity of the shooting board and plane, but should do a pretty fair job.
There are more ways than one to skin a cat, and whilst doing it all with a limited kit may be an absolute necessity for some (or a conscious choice for others), most professionals and serious amateurs, now and in the past, prefer to have tools that make the job quicker or do the job to a better standard; or even just have a few tools that are a pleasure to own and use.